Finding the Fourth Proportional to 342,109.08, 472,107.42 and 189,157.86

Step by Step Solution

1. Step 1: Write the proportion equation
   342,109.08 : 472,107.42 = 189,157.86 : x
2. Step 2: Convert to fraction form
   342,109.08/472,107.42 = 189,157.86/x
3. Step 3: Cross multiply
   342,109.08x = 472,107.42 × 189,157.86
4. Step 4: Simplify right side
   342,109.08x = 89,302,829,257.32
5. Step 5: Solve for x
   x = 89,302,829,257.32/342,109.08
6. Step 6: Final answer
   x = 261,036.13